Brake



C. H. TAYLOR May 9 BRAKE Filed April 26, 1928 IHVENTOR CeozZ H TdyZorPatented May 9, 1933 UNITED STATES PATENT OFFICE CECIL H. TAYLOR, OFSOUTH BEND, INDIANA, ASSIGNOR TO BENDIX BRAKE COMPANY, OF SOUTH BEND,INDIANA, A CORPORATION OF ILLINOIS BRAKE Application filed Apri1 26,

This invention relates to brakes and is illustrated as embodied in aninternal expanding brake for an automobile. An object of the inventionis to provide a novel arrange- 5 ment in which one of the shoes of thebrake is applied by a power-multiplying leverage exerted by an adjacentshoe.

Preferably there are at least three shoes arranged generally end to endto form the friction means of the brake, the two end shoes beinganchored and forming levers which serve to apply the center shoe. Theend shoes may be formed at their ends to hook over a stationary abutmentserving as an anchor so that the brake torque is transmitted in tensionthrough one of the shoes to the anchor.

The above and other objects and features of the invention, includingvarious novel and desirable details of construction will be apparentfrom the following description of two illustrative embodiments shown inthe accompanying drawing, in which:

The figure is a vertical section through a 2 brake embodying theinvention, just inside the head of the brake drum and showing the brakeshoes in side elevation.

The illustrated brake includes the usual rotatable brake drum 10 at theopen side of which is arranged a suitable stationary support such as abacking plate 12 and within which is arranged the friction means of thebrake. V

The illustrated brake includes two end shoes 114 and 116 formed at theirlower ends with hook-shaped extensions and 42 re spectively betweenwhich is arranged a fixed abutment 44 which serves as the brake anchorand which may be a lateral extension 40 from a forging having a base 46riveted to the backing plate 12. The shoes 114 and 116 are pivotallyconnected to a central shoe 128 by pivots 130 and 132 so that thecentral shoe 128 is applied by the end shoes when the lat- 4 ter arespread apart by means such as a cam 5 end 42 to the anchor 44 while ifthe drum is 1928. Serial No. 272,947.

turning counterclockwise, the brake torque is transmitted to the anchor44 through the hook-shaped end 40, the ends 40 and 42 thus being intension in transmitting the braking torque to the anchor 44.

While one illustrative embodiment of the invention has been described indetail, it is not my intention to limit its scope to that particularembodiment or otherwise than by the terms of the appended claims.

I claim:

1. A brake comprising, in combination, a pair of end shoes havingoverlapping hookshaped ends, a fixed anchor abutment arranged betweensaid ends, and a third shoe opposite said abutment and connected to theend shoes.

2. A brake comprising, in combination, a pair of shoes havingoverlapping hook-shaped ends, means connecting the shoes, and a fixedabutment between said hook-shaped ends arranged to serve as an anchorfor the shoe.

3. A brake comprising, in combination, a pair of shoes havingoverlapping hookshaped ends, and a fixed abutment between saidhook-shaped ends arranged to serve as an anchor for the shoe.

4. A brake comprising, in combination, a pair of end shoes havingoverlapping ends,

a fixed anchor abutment arranged between third shoe constructed andarranged to transmit the braking torque to one or the other of the endsof said end shoes.

5. A brake assembly comprising a pair of connected shoes havingoverlapping hookshaped ends.

6. A brake assembly comprising a pair of connected shoes havingoverlapping ends, and a third shoe pivoted to both of and overlappingsaid ends.

In testimony Whereof, I have hereunto signed my name.

' CECIL H. TAYLOR.

